Turning and drilling machine



feb. 5, 1924.

G. H. FAGAN vTURNING AND DRILLING MACHINE 1919 5 Sheets-Sheet] Filed Ot. 17

1,482,979 G. H, FAGAN TURNING AND DRILLING MACHINE Feb. 5 1924.

Filed Oct. 17 1919 `5 Sheets-Sheet 2 Feb. 5 ,1924. 1,482,979

. G. H. FAGAN v TURNING AND DRILLING MACHINE Filed Oct. 17 1919 5 Sheets-Sheet 3 wow m Feb. 5 1924. '1,482,979 y G. H. FAGAN TURNING AND DRILLING MACHINE Filed oct. l17, 1919 y 5 sheets-sheen www Feb. 5 1924.v 1,482,979

' G. H. PAGAN TURNING AND yDRILL'ING MACHINE Filed (ot. 17, 1,919 5 Sheets-Sheet 5 Patented Feb., 5, i924.

narran stares inane rarest# orifice.

GEORGEVH. FAGN, OF BLOOIVIFIELllNEW JERSEY.

t TURNING AND DRILLNG LACHINE.

Application led October 17, 1919. Serial No. 331,420.

ing beads or like formed bodies, shaped and,

cut ofi' from a rod of material suitably fed tothe cutting tools.

lt is an object ot this invention to pro duce a mazfliine for turning and drilling beads from a stock rod of celluloid, and as the beads are to be made of greater and of lesser length, means are provided Jfor adjustingtheextent of movement of the drill rod or stock. Again, as it is intended to fashion by this invention beads of different Vforms according to the pattern used, the tool carriageis controlled in the extent and direction of its movement by adjustable devices. Further, as the beads made at one time may di'lier in length from those of a dilierent. kind made at another time, means are included for feeding the stock rod to a dit'erent extent when so desired.

The various parts of this invention with their forms and arrangement are illustrated.

in the accompanying drawings, of which Fig. 1 is a plan view showing all parts assembled. Fig. 2 is a vertical section lengthwise of the chuck and rod-feeding mechanism. llig is a side viewo the drill, drill stock, drill guide, operating rod, rod stop and drill trame.` Fig. 4lis a top plan view te ot' the parts illustrated in Fig. 3, together with the driving sha'ttand pivoted member between the shaft and operating rod. Fig. 5 is a top plan view of the tool carriage and means tor operating the carriage, together le with the rodeediug chuck and a portion oi the driving` shaft. Fig. 6 is a crosssection taken on the indirectbroken line 6-6of 1. ln Figs. 3 and d the scale oi" drawing has been increased to enable Y, parts and their construction to be more ily made out, and in Figs. 2, 5 and 6, the scale of drawing is substantially full size.

'.Tlu'oughout the drawings and description, the same letter is used to refer to the saine part.

B, supported in bearings 4 and 5.

Considering the drawings, at one end ot a suitable bed 1, will be noted the driving pulley 2 on the end of the driving shaft 0n the lett hand end of the driving shaft is a cam 6 which acts upon a roller 7 on the end of the leg of a bell crank lever 8. Upon the other leg of the bell crank is a forked or prong member havingthe stem or body 9, and a pivotal connection 10 connecting the stem with the leg 0I the lever. Near the end of the lever is a transverse slot 11, en-r gagedby a bolt 12 passin through the stem 9. The stem is terminated bythe 'prong or fork le, and a spring 13 acts against the end of the lever with sutlicient force to keep the roller 7 against the cam 6. rllhe ends of the fork orI prong are provided with rollers 15 and 16, which will be again referred to. By means of the slot 11 andthe bolt 12, the fork may be secured in positions angularly with respect tothe leg of the bell crank.

As best shown in Fig. 2, the material acted upon by this invention is a stock vrod 17, and `in practice this rod is usually of Celluloid or the like. Upon the rod is a feed tube 18 having at its inner end the l'lat spring ngers 19 which grasp the rod within the chuck. At its outer end a collar20 is adjustably secured to the feed tube, and the coller is secured to the annular rpiece 21 in which is a grooved race for the balls 22. Opposite the piece 21 is a flange 23 having a groove which affords a raceway for the balls 24, and between the balls 22 and 24-and supported thereby is an annular abutment 25. The balls permit the abutment to be revolved with very little friction. The flange 23 forms a projecting part of the inner and movable sleeve 26, and the threaded end 2'? of the sleeve is'in engagement with the annular piece 21. lt will be noted that the threaded end 27 is conical lin form, and while this enables any wear to be taken up, it obviates the jamming of the balls and the abutnient whereby undue friction would ensue. The sleeve 26 moves lengthwise in the interior ci the clutch cylinder 28, and it is guided by the cylindrical interior or bore of the cylinder. .The left hand end 29 oi' the cylinder 28 is threaded and in engagement lll) ment 32 and such extension is marked 33.

This second abutment is freely revoluble rollers andthe same distance.

upon the extension of the ring 30 and against the balls 31. It will be observed in Fig. 2 that the rollers and 16 on the ends of the prong 14 are located between the two revoluble abutments and 32, and when the prong is moved the rollers'will make contact with one or the other of the abutments. The cam 6 has a certain fixed eccentricity, and consequently moves the roller 7 on the end of the angular lever 8 through the same arc at each revolution, and the end of the prong 14 always moves through the same arc. If the abutments 25 and 32, best shown in Fig. 2, are arranged closely in contact with rollers 15 and 16 on the ends of the prong 14, the abutments will travel with the But, if the abutment 25 is adjusted to the left on the feed tube 18, and the prong 14 is also adjusted to the left hand, and at the same time the abutment 32 is adjusted to the right hand, the prong 14 and its rollers will have traveled some little distance before the abutment is encountered, and that abutment, which is the feeding abutment will not be moved so far asbefore. Clearly, threads on end 29 of part 28 may be continued.

Further considering Fig. 2, it will be noted that the ring nut 34 locks the ring y30 in place upon the end 29 of the clutch cylinder 28, and a short sleeve 35 encircles the cylinder 28 and has one end against the ring 30. At the right hand end there is supported movably upon the exterior of the cylinder 28 the clutch jaw guide 36, and about the cylinder 28 between the short sleeve 35 and the jaw guide 36 is placed the extension spring 37. Enclosing the spring 37 is the eX- ternal casing or barrel 38 of the clutch, and it has a middle portion 39 of increased diameter whereby circumferential rshoulders 40 are formed and those shoulders engage the ball rings 41 and 42 having raceways for the balls 43 and 44. The complemental' rings of the ball bearings for the clutch barrel are designated by the numbers 45 and 46, and these rings are supported upon the frame 47 resting upon the base casting 1 as set-forth. rllhe clutch is thus revoluble in ball bearings with but a minimum of friction. rlhe right hand end 48 of the clutch cylinder 28 is threaded and engages the threaded cap 49 which is formed with an internal conical surface 50 enabling it to lit upon the clutch jaws 51, of which there may be any chosen number. rlhe jaws 51 are ordinarily provided with teeth 52 to engage or bite the stock rod 17. Both the spacing ring 53, and the jaw guide 36 engage the threaded end 55 of the clutch barrel 38. The clutch jaw guide is usually provided with a retainer plate 54. The clutch and rod-feeding mechanism described to make clear the operation of this invention is not intended to limit this invention, as revoluble intermittent rod-feeding contrivances may obviously be employed for the same uses.

Considering Figs. 1 and 3, there will be seen the rod stop 56 carried by the drill guide 57. The drill guide is supported by the rod 58 which passes through the upright portions of a U-frame 59 secured to the base 1. It is desired` that after adjustment the rod 58 shall move neither forward nor rearward, and to prevent such displacement, the rod is passed through the legs of a U-clamp which straddles the top of the upright portion of the supporting frame 59 through which it has been explained the rod 58 passes. The U-clamp is referred to by number 60, and its thumbscrew 61 acts upon the top of the frame 59. The rod while adjust able lengthwise, cannot be displaced lengthwise after adjustment, even though the rod stop56 is struck slight blows as the rod is fedy through the chuck. It is further desirable that the supporting rod 58 shall not turn on its axis and thus displace the drill guide 57. Therefore, aA keeper 62 having a set screw 62 is secured to the rod 58,. and the keeper has a sliding engagement with the keeper rod 63, the ends of which are held in the uprights of the frame 59.. rThe drill 64'is held in the customary manner in a chuck 65 at the end of a reciprocating drill stock 66. The stock is freely movable lengthwise, but it is desirable that it shall not be rotated by the rapidly rotating stock rod 17 into which it is pressed in the operation. Therefore, the drill stock has a keeper 67 having an end recess 68 in sliding engagement with the keeper rod 63 and secured to the drill stock by a set screw 69. It will now be understood that the keeper 62 first mentioned has also an end recess, not shown, which engages the keeper rod. Upon the drill stock beyond the right hand upright of the frame 59, is a collar 70 secured by a Aset screw 71, and a coil spring 72 encircles the drill stock and is comprehended between the collar 70 and the connection 73 through which the drill stock passes movably. By means of the set screw 74 the connection 73 is secured at the end of the operating rod 7 5, and if the rod be moved towards the left the drill is advanced by spring pressure. There is no rigid driving forward of the drill,

which might result in splitting or cracking the end of the stock rod 17. A coil spring 76 encircles the operating rod 75 between the connection 73 and the boss in the upright through which the rod passes back and forth in the operation.

Now considering Fig. 4, there will be observed upon the driving shaft 3, a cam 77 in contact with a roller 78 of partly spherical shape on the end of an arm 79, which is one of the arms of a three-armed member refer-red to generally' by the number 8O and having the pivot bolt or pin 81. A cam end 82 terminates a second arm 83 of this member on one side, and the arm 83 isstraight throughout on the other side. A spring 84 having one end kattached to a fulcrum plate 85, to be again mentioned, has its other end secured t0 the third arm 86 of the member 80, and it will be now understood that the action of the spring 84 is to maintain the roller 78 in contactwith the cam 77, and at the same time to keep the cam end 82 of the second arm 83 against the keeper 67 on the drill stock 66 thereby holding the drill stock yieldingly in its retracted position. Further considering Fig. 4, there will be noted a roller 87 on the end of an arm88, and itl will be also seen that the arm near its end is in contact with the curved faced block 89 that is adjustably secured by set screw 90 upon the operating rod 75. The arm 88 has a pivotal connection or bolt 91 and is supported by the angle piece orv bracket 92, which is provided with alongitudinal recess 93. The pivot bolt 91 of the arm 88 is adjustable along the recess. Thus, the roller 87 may be moved away from or towards the pivot 81 of the arm 83, which is for purposes of this description termed the actuating arm of the member 80. lt is thought to be clear that if the roller 87 is further fromtlie pivot 81 the end of the operating arm 88 will be moved further by the actuating arm 83, while less extent of movement will result ir" the roller is nearer the pivot 81. The eX- tent of the travel of the tool carriage is thus controlled, as hereinafter described.

The number 94 is used to refer to the boss in the upright of the frame 59 against which the collar on the drill stock 66 strikes to halt the advancing movement of the drill, while the operating rod continues to advance.

As shown in Fig. 1, the number 95 is used to refer to the belt that encircles the enlarged middle portion 39 of the clutch barrel, to drive the clutch and revolve the stock rod 17 rapidly By means 0f a link 96, the operating rod 75 is connected with the tool carriage bracket or table 97, as best shown in Fig. 6. This bracket 97 forms a part of or is secured to a vertical bearing portion 97aV which encloses a pillar 98, and enables the carriage to be swung back and forth horizontally upon the pillar which supports the carriage as illustrated. The carriage is designated by number 99, and the tool 100, which is termed the turning tool, is fixed upon the carriage. The number 101 is used to refer to the pintle upon the table or bracket 97 that is engaged by the end of the link 96, as shown in Fig. 6. The lower part of the bracket 97 is provided with projecting ears such as the ear 102, and pivot screws 103 and 104 pass through the said ears, and engage pivotally with the`ears'105 and 106 on the lower part ofthe tool carriage. As best shown in Fig. 1, the tool carriage has a curved spreading tail plate 107, and, as best illustrated in Fig. 6, a finger 108 belonging to a lever 109 passes below the tail plate. The lever 109 is supported by the pivot 110 upon the fulcrum frame 85 previously referred to. The pivot 110 is the fulcrum ofthe lever 109, the outer end of which is drawn downwardly bythe spring 111 attached to the base 1. The action of the spring 111 is to press the i'inger 108 against the under side of the tail plate 107 of the tool carriage, and as the carriage is permitted an up and down pivotal movement on the screws 103 and 104, the screw 112 is held yieldingly to the pattern 113. The pattern is Xed upon the tops of the vertical pillar 98, already mentioned as the pivot 0f the horizontally swinging tool carriage, and the second and like pillar 114.

Further considering Fig. 6, there will be observed upon the driving shaft 3 a cam 115, which is arranged to act upon the top of the post 116, and thus depress the end of the lever 109 which carries the roller 117. The roller 117 is arranged above the tail plate 107, and when depressed it forces the tail plate downwardly thereby tilting the tool carriage away from the pattern and from the stock rod 17. This removal of the tool occurs on the reverse movement of the carriage, and the tool is thus drawn away from the bead during the time the bead is being cut off, so that the surface of the bead will not be scratched or marred by accidental contact with the tool 100. The operation of the parting tool is brought about by providing a recess 118 in a disk 119 upon the driving shaft 3. Normally, the periphery of the disk 119 holds up the roller 120 against the force of the spring 121, and the parting tool bar 122, tool post 123 and parting tool 124 are maintained in their upper positions. But, when the roller 120 descends into the recess 118 the parting tool is lowered into cutting engagement with the stock rod 17 and the formed bead is severe-d and drops upon the base 1, or into any suitable receptacle arranged to receive it. The end of the parting tool bar 122 is pivotally secured upon the trunnion bar 125, shown in Fig. 1.

The numbers 126 and 127 are used to refer to the springs shown at the left in Fig. 1 which act upon the guided sleeve 26 and feed tube 18 through their connection with the attached collar 20, and serve to move those parts and the stock rod 17 toward the right, considering Fig. 2., when the clutch jaws are released and the rod and its attachments are free to be moved or fed. This invention is not limited to the use of the two springs 120 and 127 for this purpose, but includes the employment if desired of other known means for rod feeding.

In the operation ot this invention, the rod 17 is fed intermittently through the clutch when the jaws 51 are released by the pressure oil the rollers and 16 upon the revoluble abutment 32, and is brought to rest by contact with the rod Stop 56. lllhen the rollers 15 and 16 leave the abutment 82, the expansion spring 37 forces the short sleeve 35, collar 30, clutch cylinder 28 and cap 49 to the left, and the conical interior oit the cap presses the jaws 51 against the rod 17 engaging the teeth 52. lt will be noted in Fig. 2 that the teeth 52 have a slant in the direction et the feed of the rod, and a movement of the rod in that direction frees the teeth when the jaws are relieved of the holding pressure ot the conical interior of the cap 49, which as explained is attached to and moved by the clutch cylinder 28.

Vhen the rollers 15 and 16 contact with the revoluble abutment 25, the rod 17 being; now held by the jaws 51 as stated, the feed tube 18 is drawn to the lett acertain distance disengaging the. spring fingers 19 enabling them to take a new hold of rod at a little distance to the lett. lt ..-ll be seen that the extreme outer position oi the feeding device is effected when the roller 7 approaches its nearest to the shalt carrying the cam 6. This movement oi tne feed tube and the devices attached to it is a lined justment, and is the same regardless et the size of the rod being ted. The length of the bead is controlled by the adjustment of tl e rod stop 56. When a shorter bead is being turned, the rod does not move so liar torward, that is to say, to the right hand considering Fig. 1, but stops when "li y ine forward end of the rod meets the stop 56. lt will loe noted that on the return operation the rollers 15 and 16 travel some distance away trom the abutment 82 on the rear of the cylinder or sleeve 28. before reaching` the abutment on the feed tube 18 and operating that tube, and the same distance must be retraced before the abutn'ient 32 is again pressed upon by the rollers 15 and 16. lt is during this time otl the travel o'i the rollers that the Uurning, drilling and separating the bead is in progress.

In Fig. 1 the tool and carriage are in starting positions, andL in Fig. 5 they are illustrated in their middle positions. The carriage is horizontally swung on pillar 98 as a center by operating rod and link 96, and the extent of movement of the rod is controlled by the throw of the arm 88 against the roller 87 on pivoted arm 88. 1t roller 87 is arranged further away from the pivot S1 oi arm 88, then the pivoted arin will have its end which is in contact with the curved faced block 89 on operating rod 7 5 moved to a greater distance,y and the contrary is also true. That is to say, it the roller 87 is arranged nearer to the pivotal center of the turns the end of the stoclr rod 17 into the'y proper form, the screw 112 follows the pattern, being held thereto by the upward pressure of the lingerl 108 beneath the tail piece 107. it the saine time, the drill 6e is iloced by spring pressure into the revolving end oit the stock rod, until the collar 70 meets the boss 941. lllhereupon, the drill is stopped and spring 72 is compressed permitting the continued advancing movement ot the carriage. rlhe bead being shaped, the recess 118 on the disk 19 on the driving shaft 3 allows the roller 120 to descend and the parting tool 1211 is brought down by spring pressure and cuts oil' the termed bead as will be readily understood. During this part ci the operation the spring 76 on operating rod 75 has been comi' ssed, and its expansion retracts the opersing' rod and holds it yieldingly in the retracted position. llhe drill stock is retracted by the contact of the cam end 82 oft arm i3 during the reverse movement oi' that arm. is the bead is cut oft by the parting tool, the cam 115 forces the post 116 downwardly and the roller 117 is depressed upon the tail plate 107 of the carriage, raifing the carriage and withdrawing the tool :troni the formed end of the stock rod 17. 1t :found in practice that in drilling the bead entirely through in the forming operation, a slight burr is left on the end oi the bead, which is eliminated by allowing the drill to stop just short orP the end of the bead, but the invention is not limited to that peculiarity of the operation.

This invention is entirely automatic and its operation is repeated indefinitely. lt will be noted from the foregoing explana- 'tion that all the operations are spring controlled and in a degree sensitive and yielding and not rigid and abrupt, which is iinportant havin@ in mind the nature oit the b material acted upon.

Having now described this invention and eXplained the mode of its operation, what l claim is 1. ln a turning and drilling machine, the combination with a machine bed, et revoluble intermittent rod-feeding mechanism, a drill, spring' tension drill-feeding devices, means for limiting the feed ot the rod towards the drill, tool carriage movable horizontally, a turning tool secured upon. the carriage, a fixed pattern, the said carriage having a member arranged to contact with and to follow the pattern, means for pivotally supporting the tool carriage whereby it may be tilted bodily up and down, means for moving the tool carriage and the said drill-feeding devices at the el U saine time back and forth lengthwise of the said bed, parting tool, and means for operating the parting tool and for tilting the tool carriage in timed relation to the movements ot the said tool carriage and drill.4

2. ln a turning and drilling` machine, the

combination with revoluble intermittent rod-feeding mechanism, ot a horizontally 3. in a turning and drilling machine,`

the combination with a m chine bed, or1 intermittent roddieeding mechansim, means 'for limiting the feed ot the rod, a xedpattern, a tool carriage having an up and down movement and a horizontal movement. with respect to the said pattern', means including a spring acting to press said car-- upwardly, said carriage having a contafcb member held against the pattern by theupward*pressure on s id carriage, means 'tor swinging the carriage horizontally, a parting tool, and mechanism for operating 'he parting tool and for moving the car- 'iage downwardly whereby said contact neniber is witlidrawntrom the pattern.

4t.'- ln a turning and drilling machine, the combination with mechanism for revolving and intermittently feeding a rod of stock material, 01'? a lixed pattern, a pattern support, a tool carriage pivotally attached to the said pattern support and having a horizontal swinging movement upon and with respect to the said support, a turning tool lixed upon the carriage, the said carriage having a member arranged to contact with and to follow the pattern, a drill, r ciprocating means for holding the drill, and means for swinging the tool carriage and for correspondingly moving the said drill-holding means at the same time.

5. In a turning and drilling machine, the combination with revoluble intermittent rod-feeding mechanism, ot a fixed pattern, a pattern support, a horizontally swinging tool carriage, a turning tool fixed upon the carriage, a screw on the carriage arranged to follow the pattern, a drill, a reciprocating drill stock, a reciprocating operating rod, adjustable means i'or limiting the advancing movement of the drill stock, a link connecting the operating rod and the carriage, means for adjusting the extent of movement of the carriage, a parting tool, and means for operating the parting tool in timed relation to the swinging of the tool carriage. j

6, ln a turning and drilling machine, the

combination with revoluble intermittent rodeeding mechanism, of an adjustable rod stop, a horizontally swinging tool carriage, a turning tool iixed upon the carriage, a fixed pattern, a screw upon the carriage arranged to 'follow the pattern, means tor supporting the carriage pivotally movable towards and 'from the pattern, means for yieldingly holdingv the said screw and pattern in Contact and tor raising the carriage on the reverse movement ot the carriage, means for swinging the carriage, a parting tool, and means for operating the parting tool.

7. ln a turning and drillinof machine, the combination with an operating rod, of means for adjusting the extent oi movement of the rod comprising a pivoted arm, a Contact roller borne by said arm, a pivoted actuating arm arranged in Contact with the roller, a contact-member on the operating rod arranged agains tthe said roller-carrying arm, and means 'tor adjusting the said pivoted arm lengthwise whereby the roller is moved from or towards the pivotal point ot the said actuating arm.

8. in turning and drilling machine, the combination with revoluble intermittent rodteeding mechanism of a horizontally swinging tool carriage, a turning tool fixed upon the carriage, a fixed pattern, a screw upon the carriage arranged to follow the pattern, a drill, a reciprocating drill stock, means for moving the drill stoclr and tool carriage` means for halting the advancing movement of the drill stock while the forward movement of the carriage continues, a parting tool, and means for operating the parting too-l.

9. l'n a turning and drilling machine, the combination with a xed pattern, of a horizontally swinging tool carriage, a turning tool fixed upon the carriage, a screw upon the carriage and arranged to follow the pattern, means for supporting the carriage divotally whereby it may be given an up and down movement whereby the screw may ap* proach and leave the pattern, said carriage having a curved spreading tail plate, a lever, a spring acting to draw the outer end of the lever downwardly, a linger borne by the other end ot the lever and arranged beneath the said tail plate whereby the screw is yieldingly held in contact with the pattern, a roller carried by the lever and arranged above the tail plate, and means for depressing the roller-carrying end of the lever to raise the tool carriage.

10. In a turning and drilling machine, the combination with a driving shaft, of a drill, a horizontally movable drill stock, a support for the said drill stock, a movable tool carriage, means for moving the said carriage including a reciprocating operating rod carried by said support and pivotally connected with the carriage, spring devices connecting the Said stock and rod, and means operated by the said shaft and acting upon the rod to advance the rod and Stock, the said means having a portion arranged to act upon said stock when the movement of said means is reversed thereby retracting the said stock and rod.

l1. In a turning and drilling machine, the combination with a trame having upright portions, of a reciprocating operating rod and a reciprocating drill Stock movably supported by and passing through the said npright portions of the frame, connections between the said rod and stock for advancing the stock by corresponding movement of the rod, a keeper rod ixed in the said upright portions, and a keeper having one end movably engaging the said keeper rod and the other end connected to the drill stock to limit the retractive movement of the stock, and means for moving the operating rod including an arm arranged to act upon said keeper and retract the drill stock,

l2. ln a drilling machine, the combination with a driving shaft, of a pivoted member having three arms, a cam on said driving shaft arranged to act upon one o'lf the said arms to move the said member, a drill, a reciprocating drill stock, a reciprocating operating rod, means whereby the said operating rod is advanced by one ol the said arms ot the pivoted member.l means whereby the drill stock is retracted by the said arm, sliding and spring connections between the said rod and the drill stock whereby the drill is advanced by a corresponding movement of the said rod, and a spring attached to one of the arms of the Said member whereby the drill stock is held yieldingly in its retracted position and the said arm of the member acted upon by the said cam is maintained in contact with the cam.

13. In a turning and drilling machine, the combination with a driving shaft, of a pivoted member having three arms', a cam upon the driving shaft arranged to act upon one of said arms to actuat-e the said member, a drill, a reciprocating drill stock, a reciprocating operating rod, means acted upon by one of said arms to advance the operating rod, a spring encircling the said rod and arranged to retract the rod.I a connection between the Said rod and drill stock, an adlinstable collar on the drill Stock, a spring encircling the drill stock between said collar and the said connection whereby the drill stock is advanced by spring pressure, a Contact piece attached to the drill stock, and a spring attached to one of the arms of the three-armed member whereby said arm that advances the operating rod acts reversely on said contact piece to retract the drill stock, and the said spring acting also to maintain contact between the cam and the arm acted upon by the cam.

ln testimony whereof I afi-1X my signature.

GEORGE H. FAGAN. 

